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A comment on Axboe Achieves 8M IOPS Per-Core with Newest Linux Optimization Patches. Parent comment
"His patches pushing the greater performance have been changes to the block code, NVMe, multi-queue blk-mq, and IO_uring." https://git.kernel.dk/cgit/linux-block/log/?h=perf-wip
So it looks like he is playing with a good portion of the IO block stack with a very recent concentration on io_uring. So maybe some of it?...
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"His patches pushing the greater performance have been changes to the block code, NVMe, multi-queue blk-mq, and IO_uring." https://git.kernel.dk/cgit/linux-block/log/?h=perf-wip
So it looks like he is playing with a good portion of the IO block stack with a very recent concentration on io_uring. So maybe some of it?...